LS2 Throttle bodies.
Thread Starter
Racer
Joined: Jan 2008
Posts: 461
Likes: 32
From: Azusa Ca
LS2 Throttle bodies.
I'm in need of a larger bore throttle body. 2005 C6 with LS2.
I know nick williams is the gold standard with the drive by wire throttle bodies. But damn they are spendy. I also know you get what you pay for.
I see that a few other companies have stepped into the ring sort of speak for throttle body supply.
Summit Racing has a private label version, Granatelli, and new to the game Speedmaster from Australia has joined with an offering.
In past years Ive seen horror stories of the throttle blade motors being the issues on alot of the non-nick williams throttle bodies.
Does anyone have any feedback on any of the 3 options I mentioned above.
I know nick williams is the gold standard with the drive by wire throttle bodies. But damn they are spendy. I also know you get what you pay for.
I see that a few other companies have stepped into the ring sort of speak for throttle body supply.
Summit Racing has a private label version, Granatelli, and new to the game Speedmaster from Australia has joined with an offering.
In past years Ive seen horror stories of the throttle blade motors being the issues on alot of the non-nick williams throttle bodies.
Does anyone have any feedback on any of the 3 options I mentioned above.
Thread Starter
Racer
Joined: Jan 2008
Posts: 461
Likes: 32
From: Azusa Ca
Thread Starter
Racer
Joined: Jan 2008
Posts: 461
Likes: 32
From: Azusa Ca
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No Hostility Be Happy
Joined: Aug 2018
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From: South Hill Wa
2022 C5 of the Year Finalist - Modified
2021 C5 of the Year Finalist - Modified
I am running a 95mm LS2 Silverblade from Solar Performance on an LSA blower. It runs perfectly. They are around 600 bucks and use factory GM housings and electronics.
Race Director
Joined: Oct 2004
Posts: 12,860
Likes: 4,661
I disagree. On a stock setup, you are probably correct. On a modded, larger displacement, N/A engine, it can make a measurable difference. Tuning an engine with one, according to my tuner, makes little difference in the difficulty factor, and is much easier to tune than a larger TB. Turning this over to @Tony @ Mamo Motorsports
Last edited by grinder11; Dec 12, 2023 at 12:49 PM.
Supporting Vendor
Joined: Sep 2004
Posts: 1,270
Likes: 1,210
Difficulty in tuning is not an issue (more challenging moving up to the 103 in that department) and its adds measurable throttle response and some peak torque and peak power also
In boosted combo's you pick up even more gains across the board.
Its a fantastic upgrade for the cost....honestly its one of the first mods everyone should make regardless of how mild or wild the combo (big bang for the buck)
Feel free to reach out to me via phone or email if you would like to discuss in more detail
Regards,
Tony
Last edited by Tony @ Mamo Motorsports; Dec 12, 2023 at 02:04 PM.
Heel & Toe
Joined: Nov 2023
Posts: 21
Likes: 0
Thanks for the help!
No Hostility Be Happy
Joined: Aug 2018
Posts: 10,061
Likes: 7,375
From: South Hill Wa
2022 C5 of the Year Finalist - Modified
2021 C5 of the Year Finalist - Modified
You will love it!
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,684
From: Southeast TX
If you're wondering whether a bigger throttle body will help, measure intake manifold vacuum at full throttle. If there's vacuum there, there's a bottle neck/restriction ahead of the intake manifold. Could be throttle body or it could be air filter/CAI. Check that and isolate the source of the vacuum before spending money. If you have no vacuum there, you can't do much better than that...no matter how much money you spend.
No Hostility Be Happy
Joined: Aug 2018
Posts: 10,061
Likes: 7,375
From: South Hill Wa
2022 C5 of the Year Finalist - Modified
2021 C5 of the Year Finalist - Modified
I couldn't imagine NOT running an LS3 MAF in any modified car even in a C5.
Running a tiny MAF is counterproductive.
Running a tiny MAF is counterproductive.
Heel & Toe
Joined: Nov 2023
Posts: 21
Likes: 0
Thanks Mr. Black and everyone else for replying.
I have been following the C5 LSA Build on your YouTube channel for a while and it's awesome. I had some questions that maybe you would have insight on?
1) Anyway to get the LSA on the car without having to cut the Wiper Cowl? (I don't care about the plastic trim piece so much, but more about the metal part itself). Any "low-key" low profile LSA Blower Lids out there? Will an LS9 Style LID Help? Can it bolt straight to the LSA Case?
2) Is there any downside to having to run the Cathedral to Square adapter plates? This is one of the things making me thing twice or three times about going with an LSA, vs. a Harrop 2300 or Whipple 2.9 (which can come directly with Cathedral Port runners)
I have been following the C5 LSA Build on your YouTube channel for a while and it's awesome. I had some questions that maybe you would have insight on?
1) Anyway to get the LSA on the car without having to cut the Wiper Cowl? (I don't care about the plastic trim piece so much, but more about the metal part itself). Any "low-key" low profile LSA Blower Lids out there? Will an LS9 Style LID Help? Can it bolt straight to the LSA Case?
2) Is there any downside to having to run the Cathedral to Square adapter plates? This is one of the things making me thing twice or three times about going with an LSA, vs. a Harrop 2300 or Whipple 2.9 (which can come directly with Cathedral Port runners)
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,684
From: Southeast TX
Thanks Mr. Black and everyone else for replying.
I have been following the C5 LSA Build on your YouTube channel for a while and it's awesome. I had some questions that maybe you would have insight on?
1) Anyway to get the LSA on the car without having to cut the Wiper Cowl? (I don't care about the plastic trim piece so much, but more about the metal part itself). Any "low-key" low profile LSA Blower Lids out there? Will an LS9 Style LID Help? Can it bolt straight to the LSA Case?
2) Is there any downside to having to run the Cathedral to Square adapter plates? This is one of the things making me thing twice or three times about going with an LSA, vs. a Harrop 2300 or Whipple 2.9 (which can come directly with Cathedral Port runners)
I have been following the C5 LSA Build on your YouTube channel for a while and it's awesome. I had some questions that maybe you would have insight on?
1) Anyway to get the LSA on the car without having to cut the Wiper Cowl? (I don't care about the plastic trim piece so much, but more about the metal part itself). Any "low-key" low profile LSA Blower Lids out there? Will an LS9 Style LID Help? Can it bolt straight to the LSA Case?
2) Is there any downside to having to run the Cathedral to Square adapter plates? This is one of the things making me thing twice or three times about going with an LSA, vs. a Harrop 2300 or Whipple 2.9 (which can come directly with Cathedral Port runners)
No Hostility Be Happy
Joined: Aug 2018
Posts: 10,061
Likes: 7,375
From: South Hill Wa
2022 C5 of the Year Finalist - Modified
2021 C5 of the Year Finalist - Modified
Thanks Mr. Black and everyone else for replying.
I have been following the C5 LSA Build on your YouTube channel for a while and it's awesome. I had some questions that maybe you would have insight on?
1) Anyway to get the LSA on the car without having to cut the Wiper Cowl? (I don't care about the plastic trim piece so much, but more about the metal part itself). Any "low-key" low profile LSA Blower Lids out there? Will an LS9 Style LID Help? Can it bolt straight to the LSA Case?
2) Is there any downside to having to run the Cathedral to Square adapter plates? This is one of the things making me thing twice or three times about going with an LSA, vs. a Harrop 2300 or Whipple 2.9 (which can come directly with Cathedral Port runners)
I have been following the C5 LSA Build on your YouTube channel for a while and it's awesome. I had some questions that maybe you would have insight on?
1) Anyway to get the LSA on the car without having to cut the Wiper Cowl? (I don't care about the plastic trim piece so much, but more about the metal part itself). Any "low-key" low profile LSA Blower Lids out there? Will an LS9 Style LID Help? Can it bolt straight to the LSA Case?
2) Is there any downside to having to run the Cathedral to Square adapter plates? This is one of the things making me thing twice or three times about going with an LSA, vs. a Harrop 2300 or Whipple 2.9 (which can come directly with Cathedral Port runners)
Hindsight being what it is, I will never run a square to cathedral adapter plate ever again. They work fine in a WOT environment like racing/drifting but are less than to be desired for daily driver street manners in the tune department. There is just too much fuel puddling in the adapter plate from the way the LSA injector port fires the fuel in to the adapter.
I am actually thinking about making the switch to a C6 based square port Whipple 2.9 liter blower this winter just for the fun of it.